- 10 May, 2022 4 commits
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Yu Xiao authored
Historically the nfp driver has supported NFP chips with Netronome's PCIE vendor ID. This patch extends the driver to also support NFP chips, which at this point are assumed to be otherwise identical from a software perspective, that have Corigine's PCIE vendor ID (0x1da8). Also, Rename the macro definitions PCI_DEVICE_ID_NERTONEOME_NFPXXXX to PCI_DEVICE_ID_NFPXXXX, as they are now used in conjunction with two PCIE vendor IDs. Signed-off-by:
Yu Xiao <yu.xiao@corigine.com> Signed-off-by:
Yinjun Zhang <yinjun.zhang@corigine.com> Signed-off-by:
Simon Horman <simon.horman@corigine.com> Signed-off-by:
Jakub Kicinski <kuba@kernel.org>
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Yu Xiao authored
Historically the nfp driver has supported NFP chips with Netronome's PCIE vendor ID. In preparation for extending the to also support NFP chips that have Corigine's PCIE vendor ID (0x1da8) make printk statements relating to the chip vendor neutral. An alternate approach is to set the string based on the PCI vendor ID. In our judgement this proved to cumbersome so we have taken this simpler approach. Update strings relating to the driver to use Corigine, who have taken over maintenance of the driver. Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queueJakub Kicinski authored
Tony Nguyen says: ==================== 100GbE Intel Wired LAN Driver Updates 2022-05-06 Marcin Szycik says: This patchset adds support for systemd defined naming scheme for port representors, as well as re-enables displaying PCI bus-info in ethtool. bus-info information has previously been removed from ethtool for port representors, as a workaround for a bug in lshw tool, where the tool would sometimes display wrong descriptions for port representors/PF. Now the bug has been fixed in lshw tool [1]. Removing the workaround can be considered a regression (user might be running an older, unpatched version of lshw) (see [2] for discussion). However, calling SET_NETDEV_DEV also produces the same effect as removing the workaround, i.e. lshw is able to access PCI bus-info (this time not via ethtool, but in some other way) and the bug can occur. Adding SET_NETDEV_DEV is important, as it greatly improves netdev naming - - port representors are named based on PF name. Currently port representors are named "ethX", which might be confusing, especially when spawning VFs on multiple PFs. Furthermore, it's currently harder to determine to which PF does a particular port representor belong, as bus-info is not shown in ethtool. Consider the following three cases: Case 1: current code - driver workaround in place, no SET_NETDEV_DEV, lshw with or without fix. Port representors are not displayed because they don't have bus-info (the workaround), PFs are labelled correctly: $ sudo ./lshw -c net -businfo Bus info Device Class Description ======================================================== pci@0000:02:00.0 ens6f0 network Ethernet Controller E810-XXV for SFP <-- PF pci@0000:02:00.1 ens6f1 network Ethernet Controller E810-XXV for SFP pci@0000:02:01.0 ens6f0v0 network Ethernet Adaptive Virtual Function <-- VF pci@0000:02:01.1 ens6f0v1 network Ethernet Adaptive Virtual Function ... Case 2: driver workaround in place, SET_NETDEV_DEV, no lshw fix. Port representors have predictable names. lshw is able to get bus-info because of SET_NETDEV_DEV and netdevs CAN be mislabelled: $ sudo ./lshw -c net -businfo Bus info Device Class Description ============================================================= pci@0000:02:00.0 ens6f0npf0vf60 network Ethernet Controller E810-XXV for SFP <-- mislabeled port representor pci@0000:02:00.1 ens6f1 network Ethernet Controller E810-XXV for SFP pci@0000:02:01.0 ens6f0v0 network Ethernet Adaptive Virtual Function pci@0000:02:01.1 ens6f0v1 network Ethernet Adaptive Virtual Function ... pci@0000:02:00.0 ens6f0npf0vf26 network Ethernet interface pci@0000:02:00.0 ens6f0 network Ethernet interface <-- mislabeled PF pci@0000:02:00.0 ens6f0npf0vf81 network Ethernet interface ... $ sudo ethtool -i ens6f0npf0vf60 driver: ice ... bus-info: ... Output of lshw would be the same with workaround removed; it does not change the fact that lshw labels netdevs incorrectly, while at the same time it prevents ethtool from displaying potentially useful data (bus-info). Case 3: workaround removed, SET_NETDEV_DEV, lshw fix: $ sudo ./lshw -c net -businfo Bus info Device Class Description ============================================================= pci@0000:02:00.0 ens6f0npf0vf73 network Ethernet Controller E810-XXV for SFP pci@0000:02:00.1 ens6f1 network Ethernet Controller E810-XXV for SFP pci@0000:02:01.0 ens6f0v0 network Ethernet Adaptive Virtual Function pci@0000:02:01.1 ens6f0v1 network Ethernet Adaptive Virtual Function ... pci@0000:02:00.0 ens6f0npf0vf5 network Ethernet Controller E810-XXV for SFP pci@0000:02:00.0 ens6f0 network Ethernet Controller E810-XXV for SFP pci@0000:02:00.0 ens6f0npf0vf60 network Ethernet Controller E810-XXV for SFP ... $ sudo ethtool -i ens6f0npf0vf73 driver: ice ... bus-info: 0000:02:00.0 ... In this case poort representors have predictable names, netdevs are not mislabelled in lshw, and bus-info is shown in ethtool. [1] https://ezix.org/src/pkg/lshw/commit/9bf4e4c9c1 [2] https://patchwork.ozlabs.org/project/intel-wired-lan/patch/20220321144731.3935-1-marcin.szycik@linux.intel.com * '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue: Revert "ice: Hide bus-info in ethtool for PRs in switchdev mode" ice: link representors to PCI device ==================== Link: https://lore.kernel.org/r/20220506180052.5256-1-anthony.l.nguyen@intel.comSigned-off-by:
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Jiapeng Chong authored
Eliminate the follow smatch warning: net/rose/rose_route.c:1136 rose_node_show() warn: inconsistent indenting. Reported-by:
Abaci Robot <abaci@linux.alibaba.com> Signed-off-by:
Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Link: https://lore.kernel.org/r/20220507034207.18651-1-jiapeng.chong@linux.alibaba.comSigned-off-by:
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- 09 May, 2022 36 commits
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David S. Miller authored
Guangbin Huang says: ==================== net: hns3: updates for -next This series includes some updates for the HNS3 ethernet driver. Change logs: V1 -> V2: - Fix some sparse warnings of patch 3# and 4#. - Add patch #6 to fix sparse warnings of incorrect type of argument. ==================== Signed-off-by:David S. Miller <davem@davemloft.net>
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Guangbin Huang authored
The argument rss_ind_tbl_size is type u16 in function definition of hclge_comm_get_rss_indir_tbl(), but it is set to type __le16 in function declaration by mistake, so fix it. Signed-off-by:
Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by:
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Guangbin Huang authored
This patch adds a new mailbox opcode to query map relation between vf ring and vector. Signed-off-by:
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Jie Wang authored
This patch uses __le16/__32 to define mailbox data structures. Then byte order conversion are added for mailbox messages from VF to PF. Signed-off-by:
Jie Wang <wangjie125@huawei.com> Signed-off-by:
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Jie Wang authored
Currently, hns3 mailbox processing between PF and VF missed to convert message byte order and use data type u16 instead of __le16 for mailbox data process. These processes may cause problems between different architectures. So this patch uses __le16/__le32 data type to define mailbox data structures. To be compatible with old hns3 driver, these structures use one-byte alignment. Then byte order conversions are added to mailbox messages from PF to VF. Signed-off-by:
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Yufeng Mo authored
Vector0 is used for common interrupt control events and is irrelevant to performance. Currently, the driver sets the default affinity of vector0 to NUMA nodes, which is unnecessary. Therefore, the default setting is removed, and the driver does not set the affinity for vector0. Signed-off-by:
Yufeng Mo <moyufeng@huawei.com> Signed-off-by:
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Hao Chen authored
When set tx-buf-size as 0 by ethtool, hns3_init_tx_spare_buffer() will return directly and priv->ring->tx_spare->len is uninitialized, then print function access priv->ring->tx_spare->len will cause this issue. When set tx-buf-size as 0 by ethtool, the print function will print 0 directly and not access priv->ring->tx_spare->len. Fixes: 2373b35c ("net: hns3: add log for setting tx spare buf size") Signed-off-by:
Hao Chen <chenhao288@hisilicon.com> Signed-off-by:
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David S. Miller authored
Yuiko Oshino says: ==================== net: phy: add LAN8742 phy support add LAN8742 phy support update LAN88xx phy ID and phy ID mask so that it can coexist with LAN8742 The current phy IDs on the available hardware. LAN8742 0x0007C130, 0x0007C131 LAN88xx 0x0007C132 v3->v4: - fixed the one tab missing issue in the smsc.c. v2->v3: -added comments about the 0xfffffff2 mask that is for the differentiation and the future revisions. v1->v2: -removed "REVIEW REQUEST3" from the PATCH 1/2. ==================== Signed-off-by: -
Yuiko Oshino authored
The current phy IDs on the available hardware. LAN8742 0x0007C130, 0x0007C131 Signed-off-by:Yuiko Oshino <yuiko.oshino@microchip.com> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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Yuiko Oshino authored
update LAN88xx phy ID and phy ID mask because the existing code conflicts with the LAN8742 phy. The current phy IDs on the available hardware. LAN8742 0x0007C130, 0x0007C131 LAN88xx 0x0007C132 Signed-off-by: -
David S. Miller authored
Oleksij Rempel says: ==================== add ti dp83td510 support changes v4: - dp83td510: remove unused variables - s/base1/baset1 - s/genphy_c45_baset1_read_master_slave/genphy_c45_pma_baset1_read_master_slave changes v3: - export reusable code snippets and make use of it in the dp83td510 driver changes v2: - rewrite the driver reduce usage of common code and to reduce amount of quirks. - add genphy_c45_baset1_an_config_aneg fix ==================== Signed-off-by: -
Oleksij Rempel authored
The DP83TD510E is an ultra-low power Ethernet physical layer transceiver that supports 10M single pair cable. This driver was tested with NXP SJA1105, STMMAC and ASIX AX88772B USB Ethernet controller. Signed-off-by:
Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by:
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Oleksij Rempel authored
Export genphy_c45_baset1_read_status() to make it reusable by PHY drivers. Signed-off-by:
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Oleksij Rempel authored
Since MDIO_PMA_PMD_BT1_CTRL register shows actual configuration (and forced state configuration is equal to the state), we should show this configuration for ethtool. Signed-off-by:
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Oleksij Rempel authored
Move baset1 specific part of genphy_c45_read_pma() code to separate function to make it reusable by PHY drivers. Signed-off-by:
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Oleksij Rempel authored
Do not change default master/slave forced configuration if no changes was requested. Signed-off-by:
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Oleksij Rempel authored
Move baset1 specific part of genphy_c45_pma_setup_forced() code to separate function to make it reusable by PHY drivers. Signed-off-by:
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Oleksij Rempel authored
Do not change default master/slave autoneg configuration if no changes was requested. Fixes: 3da8ffd8 ("net: phy: Add 10BASE-T1L support in phy-c45") Signed-off-by:
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David S. Miller authored
Alaa Mohamed says: ==================== propagate extack to vxlan_fdb_delete In order to propagate extack to vxlan_fdb_delete and vxlan_fdb_parse, add extack to .ndo_fdb_del and edit all fdb del handelers. ==================== Signed-off-by: -
Alaa Mohamed authored
This patch adds extack msg support to vxlan_fdb_delete and vxlan_fdb_parse. extack is used to propagate meaningful error msgs to the user of vxlan fdb netlink api Signed-off-by:
Alaa Mohamed <eng.alaamohamedsoliman.am@gmail.com> Signed-off-by:
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Alaa Mohamed authored
Add extack support to .ndo_fdb_del in netdevice.h and all related methods. Signed-off-by:
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David S. Miller authored
Ricardo Martinez says: ==================== net: wwan: t7xx: PCIe driver for MediaTek M.2 modem t7xx is the PCIe host device driver for Intel 5G 5000 M.2 solution which is based on MediaTek's T700 modem to provide WWAN connectivity. The driver uses the WWAN framework infrastructure to create the following control ports and network interfaces: * /dev/wwan0mbim0 - Interface conforming to the MBIM protocol. Applications like libmbim [1] or Modem Manager [2] from v1.16 onwards with [3][4] can use it to enable data communication towards WWAN. * /dev/wwan0at0 - Interface that supports AT commands. * wwan0 - Primary network interface for IP traffic. The main blocks in t7xx driver are: * PCIe layer - Implements probe, removal, and power management callbacks. * Port-proxy - Provides a common interface to interact with different types of ports such as WWAN ports. * Modem control & status monitor - Implements the entry point for modem initialization, reset and exit, as well as exception handling. * CLDMA (Control Layer DMA) - Manages the HW used by the port layer to send control messages to the modem using MediaTek's CCCI (Cross-Core Communication Interface) protocol. * DPMAIF (Data Plane Modem AP Interface) - Controls the HW that provides uplink and downlink queues for the data path. The data exchange takes place using circular buffers to share data buffer addresses and metadata to describe the packets. * MHCCIF (Modem Host Cross-Core Interface) - Provides interrupt channels for bidirectional event notification such as handshake, exception, PM and port enumeration. The compilation of the t7xx driver is enabled by the CONFIG_MTK_T7XX config option which depends on CONFIG_WWAN. This driver was originally developed by MediaTek. Intel adapted t7xx to the WWAN framework, optimized and refactored the driver source code in close collaboration with MediaTek. This will enable getting the t7xx driver on the Approved Vendor List for interested OEM's and ODM's productization plans with Intel 5G 5000 M.2 solution. List of contributors: Amir Hanania <amir.hanania@intel.com> Andriy Shevchenko <andriy.shevchenko@linux.intel.com> Chandrashekar Devegowda <chandrashekar.devegowda@intel.com> Dinesh Sharma <dinesh.sharma@intel.com> Eliot Lee <eliot.lee@intel.com> Haijun Liu <haijun.liu@mediatek.com> M Chetan Kumar <m.chetan.kumar@intel.com> Mika Westerberg <mika.westerberg@linux.intel.com> Moises Veleta <moises.veleta@intel.com> Pierre-louis Bossart <pierre-louis.bossart@intel.com> Chiranjeevi Rapolu <chiranjeevi.rapolu@intel.com> Ricardo Martinez <ricardo.martinez@linux.intel.com> Madhusmita Sahu <madhusmita.sahu@intel.com> Muralidharan Sethuraman <muralidharan.sethuraman@intel.com> Soumya Prakash Mishra <Soumya.Prakash.Mishra@intel.com> Sreehari Kancharla <sreehari.kancharla@intel.com> Suresh Nagaraj <suresh.nagaraj@intel.com> [1] https://www.freedesktop.org/software/libmbim/ [2] https://www.freedesktop.org/software/ModemManager/ [3] https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/merge_requests/582 [4] https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/merge_requests/523 V8: - Rebase skb_data_area_size() patch (02). V7: - Delete unused macros. - Avoid duplicated calls to le32_to_cpu(). - Fix 'out of bounds' compilation error. - Rename port_number to port_count. - Remove '!!' when the destination variable is a boolean. - Remove unneeded spinlock around rx_length_th. - Remove common field from union inside dpmaif_drb struct. - Use 'goto' for the exit flow in t7xx_pci_enable_sleep(). - Merge CLDMA tgpd and rgpd structs. - Add comments to clarify skb consumption by ports. - Introduce skb_data_area_size() helper. - Declare the port config array as constant. - Update CLDMA_JUMBO_BUFF_SZ definition when ccci_header is introduced by port-proxy patch. - Update Reviewed-by tags. - Simplify t7xx_dpmaif_tx_send_skb() and make t7xx_dpmaif_add_skb_to_ring() report the tx queue full state early. V6: - Remove unneeded initializations and bit masks. - Remove t7xx_common.h file. - Add comment to circular linking in GPD list. - Use min instead of min_t. - Use int for local indexes instead of short or char. - Update the commit message in CLDMA patch about dependencies on core patch. - Add space between contributor name and email address. - Rename registers with double negatives e.g. DIS_ASPM_LOWPWR_CLR_0 -> ENABLE_ASPM_LOWPWR. - Fix a race condition in pci sleep resource locking. - Initialize interrupts with t7xx_pcie_mac_set_int() instead of 'clear'. - Remove duplicate spin_lock_init(&md->exp_lock). - Remove .ndo_select_queue callback due to singular TX queue. - Remove call to deprecated netif_rx_any_context(). - Fix include guard name in t7xx_hif_dpmaif.h. - Remove unused q_num parameter in DPMAIF functions. - Do not serialize the drb_wr_idx write in t7xx_dpmaif_add_skb_to_ring() and the read from t7xx_txq_drb_wr_available(). - Fix potential leak in t7xx_dpmaif_add_skb_to_ring(). - Unionize: DRB structs: msg and pd. PIT structs: msg and pd. - Replace list_head & spinlock with skb_buff_head in dpmaif_tx_queue. - Remove rx_length_th check in TX WWAN port flow. - Remove wwan_remove_port() from the critical section in WWAN port uninit. - Use skb_end_pointer() to avoid conditional compilation. - Simplify the loop in t7xx_port_ctrl_tx() by checking the buffer offset instead of calculating the number of required packets. - Remove the code for unused channel PORT_CH_STATUS_RX. - Remove bit flags from ports. Ports can check chan_enable instead of the PORT_F_RX_ALLOW_DROP flag. - Use INVALID_SEQ_NUM to identify the first seq number. - Rename port_static to port_conf and ports_private to ports. - Implement t7xx_port_send_skb() and t7xx_port_send_ctl_skb() in a layered approach to reduce duplicated code and simplify the CCCI header handling. - Move wwan_port_rx() call from port-proxy to WWAN port. - Rename t7xx_port_recv_skb() to t7xx_port_enqueue_skb(). - Move control message parsing logic from port-proxy to control port, preserve the endianness when parsing the message and make port-proxy export a function to enable/disable ports. - Use flexible arrays for: port-proxy ports. payload data in t7xx_fsm_event, port_msg, and mtk_runtime_feature. v5: - Update Intel's copyright years to 2021-2022. - Remove circular dependency between DPMAIF HW (07) and HIF (08). - Keep separate patches for CLDMA (02) and Core (03) but improve the code split by decoupling CLDMA from modem ops and cleaning up t7xx_common.h. - Rename ID_CLDMA0/ID_CLDMA1 to CLDMA_ID_AP/CLDMA_ID_MD. - Consistently use CLDMA's ring_lock to protect tr_ring. - Free resources first and then print messages. - Implement suggested name changes. - Do not explicitly include dev_printk.h. - Remove redundant dev_err()s. - Fix possible memory leak during probe. - Remove infrastructure for legacy interrupts. - Remove unused macros and variables, including those that can be replaced with constants. - Remove PCIE_MAC_MSIX_MSK_SET macro which is duplicated code. - Refactor __t7xx_pci_pm_suspend() for clarity. - Refactor t7xx_cldma_rx_ring_init() and t7xx_cldma_tx_ring_init(). - Do not use & for function callbacks. - Declare a structure to access skb->cb[] data. - Use skb_put_data instead of memcpy. - No need to use kfree_sensitive. - Use dev_kfree_skb() instead of kfree_skb(). - Refactor t7xx_prepare_device_rt_data() to remove potential leaks, avoid unneeded memset and keep rt_data and packet_size updates inside the same 'if' block. - Set port's rx_length_th back to 0 during uninit. - Remove unneeded 'blocking' parameter from t7xx_cldma_send_skb(). - Return -EIO in t7xx_cldma_send_skb() if the queue is inactive. - Refactor t7xx_cldma_qs_are_active() to use pci_device_is_present(). - Simplify t7xx_cldma_stop_q() and rename it to t7xx_cldma_stop_all_qs(). - Fix potential leaks in t7xx_cldma_init(). - Improve error handling in fsm_append_event and fsm_routine_starting(). - Propagate return codes from fsm_append_cmd() and t7xx_fsm_append_event(). - Refactor fsm_wait_for_event() to avoid unnecessary sleep. - Create the WWAN ports and net device only after the modem is in the ready state. - Refactor t7xx_port_proxy_recv_skb() and port_recv_skb(). - Rename t7xx_port_check_rx_seq_num() as t7xx_port_next_rx_seq_num() and fix the seq_num logic to handle overflows. - Declare seq_nums as u16 instead of short. - Use unsigned int for local indexes. - Use min_t instead of the ternary operator. - Refactor the loop in t7xx_dpmaif_rx_data_collect() to avoid a dead condition check. - Use a bitmap (bat_bitmap) instead of an array to keep track of the DRB status. Used in t7xx_dpmaif_avail_pkt_bat_cnt(). - Refactor t7xx_dpmaif_tx_send_skb() to protect tx_submit_skb_cnt with spinlock and remove the misleading tx_drb_available variable. - Consolidate bit operations before endianness conversion. - Use C bit fields in dpmaif_drb_skb struct which is not HW related. - Add back the que_started check in t7xx_select_tx_queue(). - Create a helper function to get the DRB count. - Simplify the use of 'usage' during t7xx_ccmni_close(). - Enforce CCMNI MTU selection with BUILD_BUG_ON() instead of a comment. - Remove t7xx_ccmni_ctrl->capability parameter which remains constant. v4: - Implement list_prev_entry_circular() and list_next_entry_circular() macros. - Remove inline from all c files. - Define ioread32_poll_timeout_atomic() helper macro. - Fix return code for WWAN port tx op. - Allow AT commands fragmentation same as MBIM commands. - Introduce t7xx_common.h file in the first patch. - Rename functions and variables as suggested in v3. - Reduce code duplication by creating fsm_wait_for_event() helper function. - Remove unneeded dev_err in t7xx_fsm_clr_event(). - Remove unused variable last_state from struct t7xx_fsm_ctl. - Remove unused variable txq_select_times from struct dpmaif_ctrl. - Replace ETXTBSY with EBUSY. - Refactor t7xx_dpmaif_rx_buf_alloc() to remove an unneeded allocation. - Fix potential leak at t7xx_dpmaif_rx_frag_alloc(). - Simplify return value handling at t7xx_dpmaif_rx_start(). - Add a helper to handle the common part of CCCI header initialization. - Make sure interrupts are enabled during PM resume. - Add a parameter to t7xx_fsm_append_cmd() to tell if it is in interrupt context. v3: - Avoid unneeded ping-pong changes between patches. - Use t7xx_ prefix in functions. - Use t7xx_ prefix in generic structs where mtk_ or ccci prefix was used. - Update Authors/Contributors header. - Remove skb pools used for control path. - Remove skb pools used for RX data path. - Do not use dedicated TX queue for ACK-only packets. - Remove __packed attribute from GPD structs. - Remove the infrastructure for test and debug ports. - Use the skb control buffer to store metadata. - Get the IP packet type from RX PIT. - Merge variable declaration and simple assignments. - Use preferred coding patterns. - Remove global variables. - Declare HW facing structure members as little endian. - Rename goto tags to describe what is going to be done. - Do not use variable length arrays. - Remove unneeded blank lines source code and kdoc headers. - Use C99 initialization format for port-proxy ports. - Clean up comments. - Review included headers. - Better use of 100 column limit. - Remove unneeded mb() in CLDMA. - Remove unneeded spin locks and atomics. - Handle read_poll_timeout error. - Use dev_err_ratelimited() where required. - Fix resource leak when requesting IRQs. - Use generic DEFAULT_TX_QUEUE_LEN instead custom macro. - Use ETH_DATA_LEN instead of defining WWAN_DEFAULT_MTU. - Use sizeof() instead of defines when the size of structures is required. - Remove unneeded code from netdev: No need to configure HW address length No need to implement .ndo_change_mtu Remove random address generation - Code simplifications by using kernel provided functions and macros such as: module_pci_driver PTR_ERR_OR_ZERO for_each_set_bit pci_device_is_present skb_queue_purge list_prev_entry __ffs64 v2: - Replace pdev->driver->name with dev_driver_string(&pdev->dev). - Replace random_ether_addr() with eth_random_addr(). - Update kernel-doc comment for enum data_policy. - Indicate the driver is 'Supported' instead of 'Maintained'. - Fix the Signed-of-by and Co-developed-by tags in the patches. - Added authors and contributors in the top comment of the src files. ====================
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Ricardo Martinez authored
Adds maintainers and documentation for MediaTek t7xx 5G WWAN modem device driver. Signed-off-by:
Ricardo Martinez <ricardo.martinez@linux.intel.com> Reviewed-by:
Loic Poulain <loic.poulain@linaro.org> Reviewed-by:
Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Reviewed-by:
Sergey Ryazanov <ryazanov.s.a@gmail.com> Signed-off-by:
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Haijun Liu authored
Introduce the mechanism to lock/unlock the device 'deep sleep' mode. When the PCIe link state is L1.2 or L2, the host side still can keep the device is in D0 state from the host side point of view. At the same time, if the device's 'deep sleep' mode is unlocked, the device will go to 'deep sleep' while it is still in D0 state on the host side. Signed-off-by:
Haijun Liu <haijun.liu@mediatek.com> Signed-off-by:
Chandrashekar Devegowda <chandrashekar.devegowda@intel.com> Co-developed-by:
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Haijun Liu authored
Enables runtime power management callbacks including runtime_suspend and runtime_resume. Autosuspend is used to prevent overhead by frequent wake-ups. Signed-off-by:
Eliot Lee <eliot.lee@intel.com> Signed-off-by:
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Haijun Liu authored
Implements suspend, resumes, freeze, thaw, poweroff, and restore `dev_pm_ops` callbacks. From the host point of view, the t7xx driver is one entity. But, the device has several modules that need to be addressed in different ways during power management (PM) flows. The driver uses the term 'PM entities' to refer to the 2 DPMA and 2 CLDMA HW blocks that need to be managed during PM flows. When a dev_pm_ops function is called, the PM entities list is iterated and the matching function is called for each entry in the list. Signed-off-by:
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Haijun Liu authored
Creates the Cross Core Modem Network Interface (CCMNI) which implements the wwan_ops for registration with the WWAN framework, CCMNI also implements the net_device_ops functions used by the network device. Network device operations include open, close, start transmission, TX timeout and change MTU. Signed-off-by:
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Haijun Liu authored
Data Path Modem AP Interface (DPMAIF) HIF layer provides methods for initialization, ISR, control and event handling of TX/RX flows. DPMAIF TX Exposes the 'dmpaif_tx_send_skb' function which can be used by the network device to transmit packets. The uplink data management uses a Descriptor Ring Buffer (DRB). First DRB entry is a message type that will be followed by 1 or more normal DRB entries. Message type DRB will hold the skb information and each normal DRB entry holds a pointer to the skb payload. DPMAIF RX The downlink buffer management uses Buffer Address Table (BAT) and Packet Information Table (PIT) rings. The BAT ring holds the address of skb data buffer for the HW to use, while the PIT contains metadata about a whole network packet including a reference to the BAT entry holding the data buffer address. The driver reads the PIT and BAT entries written by the modem, when reaching a threshold, the driver will reload the PIT and BAT rings. Signed-off-by:
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Haijun Liu authored
Data Path Modem AP Interface (DPMAIF) HW layer provides HW abstraction for the upper layer (DPMAIF HIF). It implements functions to do the HW configuration, TX/RX control and interrupt handling. Signed-off-by:
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Chandrashekar Devegowda authored
Adds AT and MBIM ports to the port proxy infrastructure. The initialization method is responsible for creating the corresponding ports using the WWAN framework infrastructure. The implemented WWAN port operations are start, stop, and TX. Signed-off-by:
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Haijun Liu authored
Control Port implements driver control messages such as modem-host handshaking, controls port enumeration, and handles exception messages. The handshaking process between the driver and the modem happens during the init sequence. The process involves the exchange of a list of supported runtime features to make sure that modem and host are ready to provide proper feature lists including port enumeration. Further features can be enabled and controlled in this handshaking process. Signed-off-by:
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Haijun Liu authored
Port-proxy provides a common interface to interact with different types of ports. Ports export their configuration via `struct t7xx_port` and operate as defined by `struct port_ops`. Signed-off-by:
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Haijun Liu authored
Registers the t7xx device driver with the kernel. Setup all the core components: PCIe layer, Modem Host Cross Core Interface (MHCCIF), modem control operations, modem state machine, and build infrastructure. * PCIe layer code implements driver probe and removal. * MHCCIF provides interrupt channels to communicate events such as handshake, PM and port enumeration. * Modem control implements the entry point for modem init, reset and exit. * The modem status monitor is a state machine used by modem control to complete initialization and stop. It is used also to propagate exception events reported by other components. Signed-off-by:
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Haijun Liu authored
Cross Layer DMA (CLDMA) Hardware interface (HIF) enables the control path of Host-Modem data transfers. CLDMA HIF layer provides a common interface to the Port Layer. CLDMA manages 8 independent RX/TX physical channels with data flow control in HW queues. CLDMA uses ring buffers of General Packet Descriptors (GPD) for TX/RX. GPDs can represent multiple or single data buffers (DB). CLDMA HIF initializes GPD rings, registers ISR handlers for CLDMA interrupts, and initializes CLDMA HW registers. CLDMA TX flow: 1. Port Layer write 2. Get DB address 3. Configure GPD 4. Triggering processing via HW register write CLDMA RX flow: 1. CLDMA HW sends a RX "done" to host 2. Driver starts thread to safely read GPD 3. DB is sent to Port layer 4. Create a new buffer for GPD ring Note: This patch does not enable compilation since it has dependencies such as t7xx_pcie_mac_clear_int()/t7xx_pcie_mac_set_int() and struct t7xx_pci_dev which are added by the core patch. Signed-off-by:
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Ricardo Martinez authored
Helper to calculate the linear data space in the skb. Signed-off-by:
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Ricardo Martinez authored
Add macros to get the next or previous entries and wraparound if needed. For example, calling list_next_entry_circular() on the last element should return the first element in the list. Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by:
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